9
Spark Plug Maintenance
If the spark plug has too much carbon deposit, it will result in poor engine performance. It is necessary to
regularly maintain and adjust the spark plug every year or every 100 hours of operation.
1. Remove the spark plug as shown.
2. Remove carbon deposit.
3. Adjust to 0.6 – 0.7 mm.
4. Replace the spark plug.
Replac
ing Engine Oil
1. Dirty engine oil will result in reduced service life of moving engine parts. It is necessary to
regularly replace engine oil and keep engine oil at proper levels.
2. Replace engine oil every 6 months or after 50 hours of operation.
3. Drain the oil when the engine is hot to guarantee that engine oil can be emptied quickly and
completely.
4. Replacing engine oil:
a. Ensure that the cap of the fuel tank is screwed tight.
b. Place a proper container near the engine for storing waste engine oil.
c. Remove the engine oil gauge, lean the engine toward the engine oil filler, and discharge
engine oil to the container as shown below.
d. Place the driver horizontally and add the recommended oil to the bottom edge of the oil
filler. Refer to page 6 for adding the correct amount of engine oil.
The recommended environmental temperature range of the machine is 5° to 105° F. We recommend the use
of SAE 10W-30 engine oil, which equals to API classification SJ.
Oil Filler
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